Shure BLX14/SM31 H9 Wireless Fitness Headset SM31 Microphone System 512-542 MHz

• Wearable wireframe headset with secure, comfortable fit made for fitness and aerobics instructors

• Integrated moisture-repelling hydrophobic fabric protects the microphone element from harmful corrosion for use in humid environments

• Flexible gooseneck design provides discrete adjustment options to optimize placement for greatest isolation

• Lightweight and low-profile form factors stave off fatigue during high-impact use

• Compatible with Shure wireless bodypack systems for direct replacement of TA4F-connected microphones

• Included windscreen tames plosive, breath and wind noise for clean and intelligble sound

• Tailored frequency response refined for crisp and clear vocal reproduction

• Legendary Shure precision engineering for durability and performance

• Up to 14 hours of continuous use (2AA batteries)

• Up to 300 feet (100m) transmission radius (line of sight)

• Quick and easy frequency matching (GROUP and CHANNEL selection buttons)

• TQG connection for use with Shure lavalier, headset, earset and instrument microphones and guitar cables

• Tactile on/off switch

• Adjustable gain control

• Lightweight, rugged construction

• One-touch QuickScan frequency selection quickly locates the best open frequency (in case of interference)

• Up to 12 compatible systems per frequency band (region-dependent)

• XLR and 1/4" output connectors

• Working Range: 91 m (300 ft) Line of Sight

• Audio Frequency Response: 50 to 15,000 Hz Note: Dependent on microphone type

• Total Harmonic Distortion: 0.5%, typical

• Dynamic Range: 100 dB, A-weighted, typical

• Operating Temperature: -18*C (0*F) to 57*C (135*

• BLX1 Bodypack Transmitter Audio Input Level gain max: -16 dBV maximum

• BLX1 Bodypack Transmitter Audio Input Level gain min (0 dB) : +10 dBV maximum

• Gain Adjustment Range: 26 dB

• Input Impedance: 1 MO

• RF Transmitter Output: 10 mW, typical varies by region

• Dimensions: 110 x 64 x 21 mm (H x W x D)

• Weight: 75 g (2.6 oz.), without batteries

• Housing: Molded ABS

• Power Requirements: 2 LR6 AA batteries, 1.5 V, alkaline

• Battery Life: up to 14 hours (alkaline)

• Type: Electret Condenser

• Frequency Response: 45 to 20,000 Hz

• Polar Pattern: Unidirectional (Cardioid)

• Output Impedance: @ 1 kHz 600 O

• Audio Output Level: -50 dBV/Pa

• Signal-To-Noise Ratio: @ 1 kHz 66 dB

• Maximum SPL: 1000 O load, @ 3% THD 145.0 dB

• Dynamic Range: @ 1 kHz, 1000 O load 117.0 dB

• Equivalent Output Noise: Typical, A-Weighted 28 dB

• Power Requirements: +5 V DC (nominal), 10 V maximum (DC bias)

• Cable: 1.1 m (45 in.)

• Connector: TA4F

• Net Weight: 60 g (2.11 oz.)

• Included: BLX4 wireless receiver; BLX1 bodypack transmitter; SM31FH Fitness Headset Condenser Microphone with windscreen and cable clip

• Channel H9 (512-542 MHz)

• Shipping Weight: 3 lbs

• Shipping Dimensions: 14 x 12 x 4 in

Features

• Wearable wireframe headset with secure, comfortable fit made for fitness and aerobics instructors

• Integrated moisture-repelling hydrophobic fabric protects the microphone element from harmful corrosion for use in humid environments

• Flexible gooseneck design provides discrete adjustment options to optimize placement for greatest isolation

• Lightweight and low-profile form factors stave off fatigue during high-impact use

• Compatible with Shure wireless bodypack systems for direct replacement of TA4F-connected microphones

• Included windscreen tames plosive, breath and wind noise for clean and intelligble sound

• Tailored frequency response refined for crisp and clear vocal reproduction

• Legendary Shure precision engineering for durability and performance

• Up to 14 hours of continuous use (2AA batteries)

• Up to 300 feet (100m) transmission radius (line of sight)

• Quick and easy frequency matching (GROUP and CHANNEL selection buttons)

• TQG connection for use with Shure lavalier, headset, earset and instrument microphones and guitar cables

• Tactile on/off switch

• Adjustable gain control

• Lightweight, rugged construction

• One-touch QuickScan frequency selection quickly locates the best open frequency (in case of interference)

• Up to 12 compatible systems per frequency band (region-dependent)

• XLR and 1/4" output connectors

• Working Range: 91 m (300 ft) Line of Sight

• Audio Frequency Response: 50 to 15,000 Hz Note: Dependent on microphone type

• Total Harmonic Distortion: 0.5%, typical

• Dynamic Range: 100 dB, A-weighted, typical

• Operating Temperature: -18*C (0*F) to 57*C (135*

• BLX1 Bodypack Transmitter Audio Input Level gain max: -16 dBV maximum

• BLX1 Bodypack Transmitter Audio Input Level gain min (0 dB) : +10 dBV maximum

• Gain Adjustment Range: 26 dB

• Input Impedance: 1 MO

• RF Transmitter Output: 10 mW, typical varies by region

• Dimensions: 110 x 64 x 21 mm (H x W x D)

• Weight: 75 g (2.6 oz.), without batteries

• Housing: Molded ABS

• Power Requirements: 2 LR6 AA batteries, 1.5 V, alkaline

• Battery Life: up to 14 hours (alkaline)

• Type: Electret Condenser

• Frequency Response: 45 to 20,000 Hz

• Polar Pattern: Unidirectional (Cardioid)

• Output Impedance: @ 1 kHz 600 O

• Audio Output Level: -50 dBV/Pa

• Signal-To-Noise Ratio: @ 1 kHz 66 dB

• Maximum SPL: 1000 O load, @ 3% THD 145.0 dB

• Dynamic Range: @ 1 kHz, 1000 O load 117.0 dB

• Equivalent Output Noise: Typical, A-Weighted 28 dB

• Power Requirements: +5 V DC (nominal), 10 V maximum (DC bias)

• Cable: 1.1 m (45 in.)

• Connector: TA4F

• Net Weight: 60 g (2.11 oz.)

• Included: BLX4 wireless receiver; BLX1 bodypack transmitter; SM31FH Fitness Headset Condenser Microphone with windscreen and cable clip

• Channel H9 (512-542 MHz)

• Shipping Weight: 3 lbs

• Shipping Dimensions: 14 x 12 x 4 in